While one study in the aggressive breast cancer cell line, MDA-MB-231, reported stimulated FSCN1 expression to provoke cell proliferation [51], other investigations by Al-Alwan et al. [56] and Heinz et al. [57] did not report a significant effect of transduced FSCN1 expression on MDA-MB-231 cell proliferation. Here, FSCN1 is linked to breast cancer.